<!-- 环形图 -->
<template>
  <div>
    <h2>大区异常处理</h2>
    <div ref="target" class="chart7"></div>
  </div>
</template>
<script setup>
import { ref, onMounted, watch, defineProps } from 'vue'
import * as echarts from 'echarts'

const props = defineProps({
  data: {
    typeof: Object,
    required: true,
  }
})

// 1. 初始化 echarts 实例
let mChart = null
const target = ref(null)

onMounted(() => {
  mChart = echarts.init(target.value)
  renderChart()
})

const getSeriesData = () => {
  const series = []
  props.data.abnormals.forEach((item, index) => {
    // 上层
    series.push({
      name: item.name,
      type: 'pie',
      clockWise: false,
      hoverAnimation: false,
      radius: [73 - index * 15 + '%', 68 - index * 15 + '%'],
      center: ['55%', '55%'],
      label: {
        show: false,
      },
      data: [
        {
          value: item.value,
          name: item.name
        }, {
          value: 1000,
          itemStyle: {
            color: 'rgba(0,0,0,0)',
            borderWidth: 0,
          },
          tooltip: {
            show: false
          },
          hoverAnimation: false
        }
      ]
    })
    // 底层
    series.push({
      name: item.name,
      type: 'pie',
      silent: true,
      z: 1,
      clockWise: false,
      hoverAnimation: false,
      radius: [73 - index * 15 + '%', 68 - index * 15 + '%'],
      center: ['55%', '55%'],
      label: {
        show: false,
      },
      data: [
        {
          value: 7.5,
          itemStyle: {
            color: 'rgba(3,31,62)',
            borderWidth: 0,
          },
          tooltip: {
            show: false,
          },
          hoverAnimation: false
        }, {
          value: 2.5,
          itemStyle: {
            color: 'rgba(0,0,0,0)',
            borderWidth: 0,
          },
          tooltip: {
            show: false,
          },
          hoverAnimation: false
        }
      ]
    })
  })
  return series
}

// 2. 构建 option 配置对象 
const renderChart = () => {
  const options = {
    // 图例配置
    legend: {
      show: true,
      icon: 'circle',
      top: '14%',
      left: '60%',
      data: props.data.abnormals.map((item) => item.name),
      width: -5,
      itemWidth: 10,
      itemHeight: 10,
      itemGap: 6,
      textStyle: {
        fontSize: 12,
        lineHeight: 5,
        color: '#ffffff'
      }
    },
    // 提示层
    tooltip: {
      show: true,
      trigger: 'item',
      formatter: '{a}<br>{b}:{c}({d}%)'

    },
    // Y轴
    yAxis: [{
      type: 'category',
      inverse: true,
      axisLine: {
        show: false
      }
    }],
    // X轴
    xAxis: [{
      show: false
    }],
    // 核心配置 
    series: getSeriesData()
  }
  // 3. 通过 实例.setOptions(option)
  mChart.setOption(options)
  // 让echarts根据浏览器大小改变动态该改变
  window.onresize = () => {//自适应大小
    mChart.resize()
  }
}

watch(() => props.data, renderChart)

</script>
<style lang="less" scoped>
h2 {
  height: .5rem;
  line-height: .5rem;
  text-align: center;
  // background-color: pink;
}

.chart7 {
  width: 100%;
  height: 3.75rem;
}
</style>